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Analysis on Band Gaps of MCM-41 Type of Materials |
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| Authors: | HAN Pei-de LIANG Jian XU Bing-she LIU Xu-guang PENG Lian-mao |
| Institution: | 1. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China; 2. Department of Electronics, Peking University, Beijing 100871, P. R. China; 3. Beijing Laboratory of Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, P. R. China |
| Abstract: | The concept and analysis method of photonic crystals and band gaps are introduced into one-dimensional(1D) ordered mesoporous materials. MCM-41 type of materials are treated theoretically as photonic crystals. The formation of band gaps is exhibited and confirmed by a calculation of transfer matrix technique. PBG was found around 9-42 nm in soft X-ray region. The photonic band-gap was predicted to be dependent on incident direction, pore size and lattice constant. The mesoporous materials with different pore sizes and different lattice constants have different band-gap widths. |
| Keywords: | Mesoporous material Photonic crystal Photonic band-gap |
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